ASTROSAT CZTI

Data Quality Report

Orbit 47104

Creation date: 2024-06-27T23:31:46.909296
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C09_003T01_9000006298_47104cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47104cztM0_level2_quad_clean.evt
Size (bytes)563,083,200121,636,800
Size537.0 MB 116.0 MB
Events in quadrant A7,723,654806,740
Events in quadrant B3,887,004827,899
Events in quadrant C3,619,021784,733
Events in quadrant D5,016,621727,458

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282523
B0167570
C0164590
D0202020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77043474.504154%
B77041912.479232%
C77051301.687216%
D77052563.322518%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7704 7704 6 6 0.08% 0.08%
B 7704 7704 8 8 0.10% 0.10%
C 7705 7705 39 39 0.51% 0.51%
D 7705 7705 173 173 2.25% 2.25%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 4267491 23645.12 867 848 180.4
A 7 3 30321 163.34 867 848 180.4
A 14 248 28385 152.61 867 848 180.4
B 0 190 216256 1253.83 867 839 171.8
B 0 198 54080 309.89 867 839 171.8
B 0 200 46612 266.42 867 839 171.8
C 0 207 96187 475.83 847 852 200.4
C 14 254 85352 421.76 847 852 200.4
C 11 16 72565 357.93 847 852 200.4
D 2 249 777396 3632.67 851 821 213.8
D 12 3 389224 1816.88 851 821 213.8
D 1 47 232473 1083.62 851 821 213.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter